18493903. TONER AND TWO-COMPONENT DEVELOPER simplified abstract (CANON KABUSHIKI KAISHA)

TONER AND TWO-COMPONENT DEVELOPER

Organization Name

CANON KABUSHIKI KAISHA

Inventor(s)

RYUJI Murayama of Chiba (JP)

SHIN Kitamura of Ibaraki (JP)

TORU Takahashi of Ibaraki (JP)

DAISUKE Tsujimoto of Tokyo (JP)

RYUICHIRO Matsuo of Ibaraki (JP)

HITOSHI Sano of Chiba (JP)

NOBUYUKI Fujita of Tokyo (JP)

SHUJI Yamada of Chiba (JP)

YUKA Gunji of Ibaraki (JP)

TAKAKUNI Kobori of Ibaraki (JP)

YOSHIHIRO Ogawa of Ibaraki (JP)

ATSUHIKO Ohmori of Kanagawa (JP)

HIROKI Kagawa of Shizuoka (JP)

KEISUKE Adachi of Tokyo (JP)

TOMOKO Sugita of Kanagawa (JP)

TONER AND TWO-COMPONENT DEVELOPER - A simplified explanation of the abstract

This abstract first appeared for US patent application 18493903 titled 'TONER AND TWO-COMPONENT DEVELOPER

Simplified Explanation

The patent application describes a toner composition containing binder resin-containing toner particles and silica fine particle S1. The toner particles have a weight-average particle diameter of 4.0-15.0 μm. Peaks originating from the silica fine particle S1 are observed in 29Si-NMR measurement, and the peak areas of specific structures in the silica fine particle S1 satisfy a prescribed relationship in Si CP/MAS NMR or Si DD/MAS NMR spectrum.

• Toner composition with specific particle size and silica fine particles
• Peaks observed in 29Si-NMR measurement of silica fine particle S1
• Prescribed relationship of peak areas in Si CP/MAS NMR or Si DD/MAS NMR spectrum

1. 1. 1. Potential Applications

- Photocopiers - Laser printers - Fax machines

1. 1. 1. Problems Solved

- Improved toner performance - Enhanced print quality - Reduced toner waste

1. 1. 1. Benefits

- Consistent printing results - Cost-effective toner usage - Environmentally friendly technology

Original Abstract Submitted

The toner contains binder resin-containing toner particles and silica fine particle S1, wherein the weight-average particle diameter of the toner is 4.0-15.0 μm, both inclusive, peaks originating with the silica fine particle S1 are observed in 29 Si-NMR measurement of the silica fine particle S1, and, in the spectrum obtained by Si CP/MAS NMR or Si DD/MAS NMR, the peak area of a peak corresponding to the D1 unit structure in the silica fine particle S1, the peak area of a peak corresponding to the D2 unit structure in the silica fine particle S1, and the peak area of a peak corresponding to the Q unit structure in the silica fine particle S1 satisfy a prescribed relationship.